ci: avoid running hardware jobs if there are already trivial issues

Suggested-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Signed-off-by: Eric Engestrom <eric@igalia.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Acked-by: David Heidelberg <david.heidelberg@collabora.com>
Acked-by: Jesse Natalie <jenatali@microsoft.com>
Acked-by: Christian Gmeiner <cgmeiner@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23774>

.gitlab-ci.yml

@@ -249,3 +249,12 @@ sanity:
     when: on_failure
     reports:
       junit: check-*.xml
+
+
+# Jobs that need to pass before spending hardware resources on further testing
+.required-for-hardware-jobs:
+  needs:
+    - job: clang-format
+      optional: true
+    - job: rustfmt
+      optional: true